Measurements: The standard air hose has an inner diameter of 0.16 inches and an outer diameter of 0.23 inches. It is 10 feet long and you can cut with the length you need. It Works great on most common air pumps, check valves, air stones, airflow control valves, and so on. Multi-purpose: Aquarium air tubing is ideal for most basic aeration setups. In addition to being suitable for fish tanks, it can be perfectly used in crab tanks, coral tanks, laboratories, hydroponics, and other projects. Flexible and Kink Resistant: This flexible airline tubing is made of stretchy silicone instead of hard plastic. Thus the air hose tube is very flexible and easy to maneuver and has good resist kinking. Durable and Reliable: The fish tank air hose is safe and reliable to resist cracking, high temperature, corrosion, and leakage. It is a basic necessity for aquarium hobbyists and aquaculture farmers. Professional Service: The aquarium air line provides 24-hour after-sales service and a 12-month warranty. If you have any questions, please feel free to contact us. › See more product details